Press Tool Clamp

A press tool clamp mechanism for a tyre curing press, including a press base, a lower mould cavity provided on the press base, an upper mould cavity mounted opposingly to the lower mould cavity and vertically movable toward and away from the lower mould cavity, centre mechanisms provided at the centre of said upper and lower mould cavities, respectively, a lock means for releasably locking the upper and lower mould cavities to each other, and a mould pressing means located beneath the lower mould cavity for directly pressing same, the mould clamp mechanism comprising: means for resiliently supporting the lower mould cavity on the press base; means for fixing a lower mould in the lower mould cavity to the press base; and mould pressing means interposed between the lower mould cavity and the lower mould.